Detecting d-wave superfluid and d-density wave states of ultracold Fermions on optical lattices

Details Detecting d-wave superfluid and d-density wave states of ultracold Fermions on optical lattices Detecting d-wave superfluid and d-density wave states of ultracold Fermions on optical lattices

2009-06-04

arxiv.org/abs/0906.0931v1

Physics

Condensed Matter

Quantum Gases

4.1 pages, 4 figures

Scientific paper

We propose a pump probe experiment for detecting the d-wave superfluid and d-density wave phases of ultracold Fermions on an optical lattice. The pump consists of periodic modulations of the optical lattice intensity which creates quasiparticle pairs in these systems. The changes in the momentum distribution under the drive can be used to measure quasiparticle dispersion and gap anisotropy. Further, we show that the pattern of peaks and dips in the spin selective density-density correlation function provides a phase sensitive probe of the symmetry of the order parameter in these systems.

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